Walls across streets

Not so long back I posted about the wall across the road in Chorlton.
Well I've just got to page 189 of Restoration Home and it's about walls across roads. One particular one in Bromley Kent was put up to prevent the tenants of the London County Council estate taking the shortcut to town through the private houses. It was built in 1926 and despite protests by the council and attempts to knock it down by residents, the wall remained until 1939 when it was removed to allow fire engines easy access.